Ladder scaffold bracket



Dem 18,1923. 1,4773% I H. P, WHITE- LADDER SCAFFOLD BRACKET Filed Sept.11] 1922 an definitely appear from the detailed descrip- Patented Dee.l8, i923.

HENRY P. VHITE, O1? BENZONIA, MICHIGAN.

LADDER SCAFFOLID BRACKET.

Application filed September 11, 1923. Serial No. 587,603.

To all whom it may concern:

Be it known that I, HENRY P. WHITE, a citizen of the United. States,residing at Benzonia, county of Benzie, State of li lichigan, haveinvented certain new and useful Improvements in Ladder ScaffoldBrackets, of which the following is a specification. 1

This invention relates to improvements in latter scaffold brackets.

The main objects of this invention are:

First, to provide an improved ladder bracket for supporting scaffoldingwhich engages the ladder so that the strain is practically all upon therisers or side rails of the ladder.

Second, to provide an improved ladder scaffold bracket which is easilyadjusted to support the scaffolding either atthe inside or on theoutside of the ladder.

Third, to provide an improved ladder scaffold bracket which is verystrong and at the same time comparatively light in weight.

Fourth, to provide a horizontal support for the scaffolding when theladders are disposed at different angles of inclination.

Objects pertaining to details and economics of construction andoperation will tion to follow.

I accomplish the objects of my invention by the devices and meansdescribed in the ,following specification. The invention is clearlydefined and pointed out in the claims.

A structure which is a preferred embodiment of my invention is clearlyillustrated in the accompanying drawing forming a part of thisapplication, in which:

Fig. I is a perspective view of a ladder scaffold bracket embodying thefeatures of my invention, a portion of the ladder being shown toillustrate this adjustment or adaptation of the ladder thereto, theseaffold being indicated by dotted lines.

Fig. 11 is a perspective'view'of my improved ladder scaifold bracketmounted upon the inner or rear side of a ladder, a portion only of whichis shown, and a portion of the scaffolding being shown by dotted lines.

Fig. HT is a perspective view of my improved ladder scaffold bracketremoved from the ladder.

In the drawing similar reference characters refer to similar parts inall of the views.

Referring to the drawing, the ladder illustrated is of the usual typecomprising side rails or risers 1 and rungs 2. My improved bracketcomprises a pair of bracket members designated generally by the numerals3 and l. The bracket member 3 comprises a pair of rearwardly divergingarms 5 adapted to embrace the side rails of the ladder and terminatingin forwardly facing rail engaging hooks 6. The bills 7 of these hookshave rung engaging hooks 8.,

The bracket member 4? comprises a pair of rearwardly diverging arms 9terminating in inward offsets 10 adapted to engage the front edges andinner sides of the rails and terminating in the downwardly facing rungengaging hooks 11. The ladder members have parallel portions 12 at theirfront ends, each having a series of holes 13 there in adapted to receivethe bolt 14 by means of which they are pivotally and adjustablyconnected; This permits adjustment to bring one of the bracket membersto a horizontal position so that it will support the scaffold as at 15With the parts thus arranged the stress upon the bracket member 3 is apulling stress and that upon the bracket member 9 is a thrusting stress.The bracket may be adjusted at either side of the ladder and thesea-Holding arranged on the bracket member which is horizontallysupported according to the position of the bracket upon the ladder.

The bolt 14: and the plurality of holes 13 to receive the same permitsthe adjustment of the parts to compensate for the angle at which theladder is placed and in either position the strain upon the ladder issupported mainly by the side rails, there being very little stress orstrain upon the ladder rungs, and such as there is, is close to therails, thereby lessening the liability of breakage.

l have illustrated and described'my improved bracket in a form which Ihave found very practical. I have not attempted to illustrate ordescribe other modificationsor adaptations which I contemplate as Ibelieve the disclosure made will enable those skilled in the art towhich my inven tion relates to embody or adapt the same as may bedesired.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is:

1. In a scaffold bracket, the combination of a pair of bracket members,each consisting of a pair of rearwardly diverging arms, the arms of oneof said members being adapted to embrace the side rails of a ladder andterminating in forwardly facing rail engaging hooks the bills of thehooks having downwardly facing rung engaging hooks thereon, the arms ofthe other member having inwardly disposed angled offsets adapted toengaget-he front and inner sides of the ladder railsand terminating indownw'ardly facing rung engaging hooks, said arms having parallelportions at their front endswith bolt holes therein, and a bolt e11gageable in said holes for adjustably and pivotally connecting saidmembers, whereby one of the members may be supported to receive thescaffolding and the other to act as a strut therefor.

2. In a scaffold bracket, the combination of a pair of bracket members,each consisting of a pair of arms, the arms of one of said members beingadapted to embrace the side rails of a ladder and terminating inforwardly facing rail engaging hooks, the bills of the hooks havingdownwardly facing rung engaging hooks thereon, the arms of the othermember having inwardly disposed angled offsets adapted to engage thefront and inner sides of the ladder rails and terminating in downwardlyfacing rung engaging hooks, and means for connecting the forward ends ofsaid arms. whereby one of the members may be supported to receive thescaffolding and the other to act as a strut therefor. v

3. In a scafiold bracket, the combination of a pair ofbracket members,each consisting of a pair of rearwardly diverging arms, the arms of oneof said members terminating in forwardly facing rail engaging hooks,provided with downwardly facing rung engaging hooks, the arms of theother member having angled offsets adapted to engage the front of theladder rails and provided with rung engaging hooks, said arms havingparallel portions at their front ends with bolt holes therein, and a.bolt engageable in said holes for adjustably and pivotally connectingsaid members whereby one of the members may be supported to receive thescaffolding and the other to act as a strut therefor.

4. In a scaffold bracket, the combination of a pair of bracket members,each consisting of a pair of arms, the armsof one of said membersterminating in forwardly facing rail engaging hooksgprovided withdownwardly facing rung engaging hooks, the arms of the. other memberhaving angled offsets adapted to engage the front of the ladder railsand provided with rung engaging hooks and means for connecting theforward ends of said arms.

5. In a scaffold bracket, the combination of a pair of bracket members,each consisting of a pair of rearwardly diverging arms, the arms of oneof said members having rail engaging hooks adapted to sustain a pullingstress upon the bracket members, thearms of the other member having railengaging portions adapted to. sustaln a thrusting stress upon themember, the arms of both members havmgdownwardly facing rung engagingmembers thereon, said arms having parallel portions at their front endswith bolt holes therein, and ,abolt engageable in said holes foradjustably and pivotally connecting said members whereby one of themembers may be supported to receive 1 the scaffolding and theotherfitoact as a strut therefor. H I

6. In a scaffold bracket, the combination of a pair of bracket memberseach consisting of a pair of arms, the arms of one of said membershaving rail engaging hooks adapted to sustain a pulling stress, upon thebracket member, the arms of the Other member having railengagingportions adapted to sustain a thrusting stress upon the member,the arms of both members having downwardly facing rung engaging member'sthereon. l L I 7. In a scaffold bracket, the combination of a pair ofbracket members, one of said -men1bers having rail engaginghooksadaptedto sustaina pullingjstress upon-the memher, the other member having railengaging portions adapted to sustain a thrusting stress upon the member,bothmembers having downwardly facing rung engaging mem-, bers thereon,and means for-connecting said members whereby one of the members may besupported to receive the, scaffoldingand the other to act asastruttherefor.

In witness whereof, I have hereunto set my hand nd seal.

HENRY P. WHITE. a s.]

